Compound E1-I
Radiation crosslinkable compound for medium and heavy
wall heat-shrinkable cable sleeves, for aerial,
underground and direct burial installation.
Compound properties
Compound E1-I is a radiation crosslinkable compound offering excellent
mechanical properties and strain relief. The carefully selected combination
of polymers, processing aids and additives makes this compound an excellent
choice for the manufacturing of medium and thick wall heat-shrinkable
tubings for applications on the power and telecom market for cable joints
and terminations at indoor and outdoor applications.
The compound is easy processable and can be extruded on standard PE or
PVC screws having a 2:1 pressure ratio.
Compound characteristics
| Color |
|
Black |
| Specific gravity |
ASTM D 792 |
1.0 |
| Water absorption |
ASTM D 570 |
0.15% |
| MFI (160ºC, 21.6kg) |
ASTM D 1238 |
10 |
Extrusion
| Recommended extrusion temperature profile |
120ºC - 125ºC - 130ºC - 135ºC - 140ºC |
Crosslinking
| Recommended dose |
40 - 80 kGY |
| Hot-set elongation |
125 - 175% (150ºC and 35 gr/mm2 load) |
Packaging
The radiation crosslinkable PTL compounds are supplied in bags of 25 kg
or in octabins.
The compound should be stored below 30ºC.
Tubing properties
Heat-shrinkable tubing made of this compound will show a continuous operating
temperature of 110ºC.
The excellent heat-ageing properties will allow the product to withstand
250ºC for short periods. The non-corrosive properties and its excellent
resistance against ingress of chemicals, acids and oils makes this compound
an ideal choice for harsh applications .
Technical values
| Property |
Test Method |
Typical value |
| |
| Physical |
| Tensile strenght at break |
ASTM D 638 |
14 MPa |
| Elongation at break |
ASTM D 638 |
400% |
| |
| Thermal |
| Continuous operating temperature |
|
-55ºC to +110ºC |
| Minimum shrink temperature |
|
100ºC |
| Heat shock (4hrs @ 250ºC) |
ASTM D 2671 |
No cracking, dripping, flowing |
| Heat ageing (168hrs @ 150ºC) |
ASTM D 638 |
Elongation 250% |
| Low temp. flexibility (-55ºC) |
ASTM D 2671C |
No cracking |
| |
| Chemical |
| Fungus resistance |
|
Inert |
| Fluid resistance |
ESI 09-13 |
Excellent |
| Copper Corrosion |
ASTM D 2671 B |
Excellent |
| |
| Electrical |
| Dielectric strength |
ASTM D 2671 |
10-20 kV/mm(*) |
| Volume resistivity |
ASTM D 257 |
10 @ 13 ohm.cm |
International specifications
- ESI 09-13
(*) Depending on wall thickness.
|
